A map of North Western system of 6471 route miles as it existed in 1929, 5972 of which were broad gauge. The remainder consisted of 499 miles of 2ft 6in gauge lines, located mainly in Baluchistan & the North West Frontier Province.

The state operated and largely state owned North Western Railway was by far the largest on the sub-continent. Some 1800 miles of its lines in Baluchistan & the North West Frontier Province were built for strategic purposes and were generally unremunerative. The map actually shows 6513 routes miles of line, including as it does the 42 mile long 2ft gauge line from Dera Ismail Khan on the River Indus, to Tank, built by the military in 1920, but closed in 1928.